Manufacturing container or tube from paper; or other manufacturi – Container making – Rigid container
Patent
1995-06-02
2000-10-03
Scherbel, David A.
Manufacturing container or tube from paper; or other manufacturi
Container making
Rigid container
493107, 493109, 493149, B31B 4902
Patent
active
061265853
ABSTRACT:
Apparatus for lubricating and curling a rim of a paperboard container includes a housing block defining a central recess sized and configured to accept therein a rim of a paperboard container to be curled. An annular curling channel is disposed in the recess for curling the rim of the paperboard container in response to relative advancing movement between the paperboard container and the housing block. The housing block also defines an annular liquid channel concentrically disposed in surrounding relationship to the annular curling channel for distributing lubricating liquid. A porous liquid transfer ring is attached to the housing block in covering relationship to the annular liquid channel so that lubricating liquid supplied to the liquid channel comes into contact with the liquid transfer ring. The liquid transfer ring includes a circular edge surface which defines a central opening such that the liquid transfer ring extends at least partially over the curling channel. In use, the rim of the paperboard container comes into wiping contact with the central opening of the liquid transfer ring so that lubricating liquid is transferred thereto prior to the rim being curled in the curling channel.
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Brown Robert
Earnest Edward
Norwood David W.
Ojini Anthony
Scherbel David A.
Sweetheart Cup Company Inc.
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